IndividualActive
James Collins, MD
NPI 1225066020 · Internal Medicine Physician · Naperville, IL
James Collins, MD is a Internal Medicine Physician provider in Naperville, IL (NPI 1225066020).
Provider details
- NPI number
- 1225066020
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036061474 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
640 S Washington St
268
Naperville, IL 60540-6603
Phone: (630) 355-6200
Fax: (630) 355-6216
Street-level locationGet directions
Mailing address
1860 Paysphere Cir
Chicago, IL 60674-0018
Registry dates
- Enumerated
- 2006-06-29
- Last updated
- 2012-09-21
Frequently asked questions
- What is James Collins's NPI number?
- James Collins's National Provider Identifier (NPI) is 1225066020, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Collins's specialty?
- James Collins is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Collins located?
- James Collins's practice location on file with NPPES is 640 S Washington St, Naperville, IL 60540-6603.
- What is James Collins's phone number?
- The practice phone number listed in the NPPES registry for James Collins is (630) 355-6200.
- Is James Collins's NPI active?
- Yes — James Collins's NPI (1225066020) is active in the NPPES registry as of the last update on 2012-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.